1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
19 #include "AliMUONDigitizerV3.h"
22 #include "AliMUONCalibrationData.h"
23 #include "AliMUONConstants.h"
24 #include "AliMUONDigit.h"
25 #include "AliMUONLogger.h"
26 #include "AliMUONTriggerElectronics.h"
27 #include "AliMUONTriggerStoreV1.h"
28 #include "AliMUONVCalibParam.h"
29 #include "AliMUONVDigitStore.h"
30 #include "AliMUONGeometryTransformer.h" //ADDED for trigger noise
31 #include "AliMUONRecoParam.h"
32 #include "AliMUONTriggerChamberEfficiency.h"
33 #include "AliMUONTriggerUtilities.h"
36 #include "AliMpSegmentation.h"
37 #include "AliMpCathodType.h"
38 #include "AliMpConstants.h"
39 #include "AliMpDEIterator.h"
40 #include "AliMpDEManager.h"
42 #include "AliMpStationType.h"
43 #include "AliMpVSegmentation.h"
44 #include "AliMpDDLStore.h"
46 #include "AliCDBManager.h"
47 #include "AliCodeTimer.h"
50 #include "AliDigitizationInput.h"
51 #include "AliLoader.h"
52 #include "AliRunLoader.h"
54 #include <Riostream.h>
63 //-----------------------------------------------------------------------------
64 /// \class AliMUONDigitizerV3
66 /// The digitizer is performing the transformation to go from SDigits (digits
67 /// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration)
69 /// The decalibration is performed by doing the reverse operation of the
70 /// calibration, that is we do (Signal+pedestal)/gain -> ADC
72 /// Note also that the digitizer takes care of merging sdigits that belongs
73 /// to the same pad, either because we're merging several input sdigit files
74 /// or with a single file because the sdigitizer does not merge sdigits itself
75 /// (for performance reason mainly, and because anyway we know we have to do it
76 /// here, at the digitization level).
78 /// August 2011. In order to remove the need for specific MC OCDB storages,
79 /// we're introducing a dependence of simulation on AliMUONRecoParam (stored
80 /// in MUON/Calib/RecoParam in OCDB), which is normally (or conceptually, if
81 /// you will) only a reconstruction object. That's not a pretty solution, but,
82 /// well, we have to do it...
83 /// This dependence comes from the fact that we must know how to decalibrate
84 /// the digits, so that the decalibration (done here) - calibration (done during
85 /// reco) process is (as much as possible) neutral.
88 /// \author Laurent Aphecetche
90 //-----------------------------------------------------------------------------
96 return static_cast<AliMUON*>(gAlice->GetModule("MUON"));
99 //ADDED for trigger noise
100 const AliMUONGeometryTransformer* GetTransformer()
102 return muon()->GetGeometryTransformer();
106 Double_t AliMUONDigitizerV3::fgNSigmas = 4.0;
109 ClassImp(AliMUONDigitizerV3)
112 //_____________________________________________________________________________
113 AliMUONDigitizerV3::AliMUONDigitizerV3(AliDigitizationInput* digInput,
114 Int_t generateNoisyDigits)
115 : AliDigitizer(digInput),
116 fIsInitialized(kFALSE),
117 fCalibrationData(0x0),
118 fTriggerProcessor(0x0),
119 fNoiseFunctionTrig(0x0),
120 fGenerateNoisyDigits(generateNoisyDigits),
121 fLogger(new AliMUONLogger(1000)),
122 fTriggerStore(new AliMUONTriggerStoreV1),
124 fOutputDigitStore(0x0),
125 fInputDigitStores(0x0),
127 fTriggerEfficiency(0x0),
128 fTriggerUtilities(0x0),
129 fEfficiencyResponse(2*AliMUONConstants::NTriggerCh()*AliMUONConstants::NTriggerCircuit())
133 AliDebug(1,Form("AliDigitizationInput=%p",fDigInput));
137 //_____________________________________________________________________________
138 AliMUONDigitizerV3::~AliMUONDigitizerV3()
140 /// Dtor. Note we're the owner of some pointers.
144 // delete fCalibrationData;
145 delete fTriggerProcessor;
146 delete fNoiseFunctionTrig;
147 delete fTriggerStore;
149 delete fOutputDigitStore;
150 delete fInputDigitStores;
151 delete fTriggerUtilities;
153 AliInfo("Summary of messages");
159 //_____________________________________________________________________________
161 AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONVDigit& digit, Bool_t addNoise)
163 /// For tracking digits, starting from an ideal digit's charge, we :
165 /// - "divide" by a gain (thus decalibrating the digit)
166 /// - add a pedestal (thus decalibrating the digit)
167 /// - add some electronics noise (thus leading to a realistic adc), if requested to do so
168 /// - sets the signal to zero if below 3*sigma of the noise
170 Float_t charge = digit.Charge();
172 if (!digit.IsChargeInFC())
174 charge *= AliMUONConstants::DefaultADC2MV()*AliMUONConstants::DefaultA0()*AliMUONConstants::DefaultCapa();
175 fLogger->Log("CHECK ME ! WAS NOT SUPPOSED TO BE HERE !!! ARE YOU RECONSTRUCTING OLD SIMULATIONS ? ");
176 AliError("CHECK ME ! WAS NOT SUPPOSED TO BE HERE !!! ARE YOU RECONSTRUCTING OLD SIMULATIONS ? ");
179 // We set the charge to 0, as the only relevant piece of information
180 // after Digitization is the ADC value.
183 Int_t detElemId = digit.DetElemId();
184 Int_t manuId = digit.ManuId();
186 AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId);
189 fLogger->Log(Form("%s:%d:Could not get pedestal for DE=%4d manuId=%4d. Disabling.",
196 Int_t manuChannel = digit.ManuChannel();
198 if ( pedestal->ValueAsFloat(manuChannel,0) == AliMUONVCalibParam::InvalidFloatValue() ||
199 pedestal->ValueAsFloat(manuChannel,1) == AliMUONVCalibParam::InvalidFloatValue() )
201 // protection against invalid pedestal value
206 TString calibrationMode(fRecoParam->GetCalibrationMode());
207 calibrationMode.ToUpper();
209 AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId);
213 if (!calibrationMode.Contains("NOGAIN") )
215 fLogger->Log(Form("%s:%d:Could not get gain for DE=%4d manuId=%4d. Disabling.",
223 Int_t adc = DecalibrateTrackerDigit(*pedestal,gain,manuChannel,charge,addNoise,
231 //_____________________________________________________________________________
233 AliMUONDigitizerV3::ApplyResponseToTriggerDigit(AliMUONVDigit& digit)
235 /// For trigger digits, starting from an ideal digit, we :
237 /// - apply efficiency (on demand)
238 /// - apply trigger masks
240 Int_t detElemId = digit.DetElemId();
241 Int_t localCircuit = digit.ManuId();
242 Int_t strip = digit.ManuChannel();
243 Int_t cathode = digit.Cathode();
244 Int_t trigCh = detElemId/100 - 11;
246 Int_t arrayIndex = GetArrayIndex(cathode, trigCh, localCircuit);
248 // Trigger chamber efficiency
249 if ( fTriggerEfficiency ) {
250 if ( fEfficiencyResponse[arrayIndex] < 0 ) {
251 Bool_t isTrig[2] = {kTRUE, kTRUE};
252 fTriggerEfficiency->IsTriggered(detElemId, localCircuit, isTrig[0], isTrig[1]);
253 Int_t arrayIndexBend = GetArrayIndex(0, trigCh, localCircuit);
254 Int_t arrayIndexNonBend = GetArrayIndex(1, trigCh, localCircuit);
255 fEfficiencyResponse[arrayIndexBend] = isTrig[0];
256 fEfficiencyResponse[arrayIndexNonBend] = isTrig[1];
258 AliDebug(1,Form("ch %i cath %i board %i strip %i efficiency %i\n", trigCh, cathode, localCircuit, strip, fEfficiencyResponse[arrayIndex]));
259 if ( fEfficiencyResponse[arrayIndex] == 0 ) {
262 //AliDebug(1,Form("ch %i cath %i board %i strip %i NOT efficient\n", trigCh, cathode, localCircuit, strip));
268 Bool_t isMasked = fTriggerUtilities->IsMasked(digit);
269 AliDebug(1,Form("ch %i cath %i board %i strip %i mask %i\n", trigCh, cathode, localCircuit, strip, !isMasked));
273 //AliDebug(1,Form("ch %i cath %i board %i strip %i masked\n", trigCh, cathode, localCircuit, strip));
280 //_____________________________________________________________________________
282 AliMUONDigitizerV3::ApplyResponse(const AliMUONVDigitStore& store,
283 AliMUONVDigitStore& filteredStore)
285 /// Loop over all chamber digits, and apply the response to them
286 /// Note that this method may remove digits.
288 filteredStore.Clear();
290 const Bool_t kAddNoise = kTRUE;
292 TIter next(store.CreateIterator());
293 AliMUONVDigit* digit;
295 if ( fTriggerEfficiency ) fEfficiencyResponse.Reset(-1);
297 while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) )
299 AliMp::StationType stationType = AliMpDEManager::GetStationType(digit->DetElemId());
301 if ( stationType != AliMp::kStationTrigger )
303 Bool_t addNoise = kAddNoise;
304 if (digit->IsConverted()) addNoise = kFALSE; // No need to add extra noise to a converted real digit
305 ApplyResponseToTrackerDigit(*digit,addNoise);
308 ApplyResponseToTriggerDigit(*digit);
311 if ( digit->ADC() > 0 || digit->Charge() > 0 )
313 filteredStore.Add(*digit,AliMUONVDigitStore::kIgnore);
318 //_____________________________________________________________________________
320 AliMUONDigitizerV3::DecalibrateTrackerDigit(const AliMUONVCalibParam& pedestals,
321 const AliMUONVCalibParam* gains,
326 const TString& calibrationMode)
328 /// Decalibrate (i.e. go from charge to adc) a tracker digit, given its
329 /// pedestal and gain parameters.
330 /// Must insure before calling that channel is valid (i.e. between 0 and
331 /// pedestals or gains->GetSize()-1, but also corresponding to a valid channel
332 /// otherwise results are not predictible...)
334 /// This method is completely tied to what happens in its sister method :
335 /// AliMUONDigitCalibrator::CalibrateDigit, which is doing the reverse work...
338 static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC.
340 Bool_t nogain = calibrationMode.Contains("NOGAIN");
345 Float_t capa(AliMUONConstants::DefaultCapa()); // capa = 0.2 and a0 = 1.25
346 Float_t a0(AliMUONConstants::DefaultA0()); // is equivalent to gain = 4 mV/fC
347 Float_t adc2mv(AliMUONConstants::DefaultADC2MV()); // 1 ADC channel = 0.61 mV
353 AliFatalClass("Cannot make gain decalibration without gain values !");
355 a0 = gains->ValueAsFloat(channel,0);
356 a1 = gains->ValueAsFloat(channel,1);
357 thres = gains->ValueAsInt(channel,2);
358 qual = gains->ValueAsInt(channel,3);
361 Float_t pedestalMean = pedestals.ValueAsFloat(channel,0);
362 Float_t pedestalSigma = pedestals.ValueAsFloat(channel,1);
364 AliDebugClass(1,Form("DE %04d MANU %04d CH %02d PEDMEAN %7.2f PEDSIGMA %7.2f",
365 pedestals.ID0(),pedestals.ID1(),channel,pedestalMean,pedestalSigma));
367 if ( qual <= 0 ) return 0;
369 Float_t chargeThres = a0*thres;
371 Float_t padc(0); // (adc - ped) value
373 if ( nogain || charge <= chargeThres || TMath::Abs(a1) < 1E-12 )
377 if ( TMath::Abs(a0) > 1E-12 )
384 // FIXME: when we'll use capacitances and real gains, revise this part
385 // to take capa properly into account...
387 AliWarningClass("YOU PROBABLY NEED TO REVISE THIS PART OF CODE !!!");
389 // linear + parabolic part
390 Double_t qt = chargeThres - charge;
391 Double_t delta = a0*a0-4*a1*qt;
394 AliErrorClass(Form("delta=%e DE %d Manu %d Channel %d "
395 " charge %e a0 %e a1 %e thres %d ped %e pedsig %e",
396 delta,pedestals.ID0(),pedestals.ID1(),
397 channel, charge, a0, a1, thres, pedestalMean,
402 delta = TMath::Sqrt(delta);
404 padc = ( ( -a0 + delta ) > 0 ? ( -a0 + delta ) : ( -a0 - delta ) );
410 if ( TMath::Abs(padc) > 1E-3)
412 // this is more than a precision problem : let's signal it !
413 AliErrorClass(Form("padc=%e DE %d Manu %d Channel %d "
414 " charge %e a0 %e a1 %e thres %d ped %e pedsig %e delta %e",
415 padc,pedestals.ID0(),pedestals.ID1(),
416 channel, charge, a0, a1, thres, pedestalMean,
417 pedestalSigma,delta));
420 // ok. consider we're just at thres, let it be zero.
433 Float_t adcNoise = 0.0;
439 adcNoise = NoiseFunction()->GetRandom()*pedestalSigma;
443 adcNoise = gRandom->Gaus(0.0,pedestalSigma);
447 adc = TMath::Nint(padc + pedestalMean + adcNoise + 0.5);
449 if ( adc < TMath::Nint(pedestalMean + fgNSigmas*pedestalSigma + 0.5) )
451 // this is an error only in specific cases
452 if ( !addNoise || (addNoise && noiseOnly) )
454 AliDebugClass(1,Form(" DE %04d Manu %04d Channel %02d "
455 " a0 %7.2f a1 %7.2f thres %04d ped %7.2f pedsig %7.2f adcNoise %7.2f "
456 " charge=%7.2f padc=%7.2f adc=%04d ZS=%04d fgNSigmas=%e addNoise %d noiseOnly %d ",
457 pedestals.ID0(),pedestals.ID1(),channel,
458 a0, a1, thres, pedestalMean, pedestalSigma, adcNoise,
460 TMath::Nint(pedestalMean + fgNSigmas*pedestalSigma + 0.5),
461 fgNSigmas,addNoise,noiseOnly));
467 // be sure we stick to 12 bits.
476 //_____________________________________________________________________________
478 AliMUONDigitizerV3::CreateInputDigitStores()
480 /// Create input digit stores
483 if (fInputDigitStores)
485 AliFatal("Should be called only once !");
488 fInputDigitStores = new TObjArray;
490 fInputDigitStores->SetOwner(kTRUE);
492 for ( Int_t iFile = 0; iFile < fDigInput->GetNinputs(); ++iFile )
494 AliLoader* inputLoader = GetLoader(fDigInput->GetInputFolderName(iFile));
496 inputLoader->LoadSDigits("READ");
498 TTree* iTreeS = inputLoader->TreeS();
501 AliFatal(Form("Could not get access to input file #%d",iFile));
504 fInputDigitStores->AddAt(AliMUONVDigitStore::Create(*iTreeS),iFile);
508 //_____________________________________________________________________________
510 AliMUONDigitizerV3::Digitize(Option_t*)
513 /// We first loop over input files, and merge the sdigits we found there.
514 /// Second, we digitize all the resulting sdigits
515 /// Then we generate noise-only digits (for tracker only)
516 /// And we finally generate the trigger outputs.
518 AliCodeTimerAuto("",0)
520 if ( fDigInput->GetNinputs() == 0 )
522 AliWarning("No input set. Nothing to do.");
526 if ( !fIsInitialized )
528 AliError("Not initialized. Cannot perform the work. Sorry");
532 Int_t nInputFiles = fDigInput->GetNinputs();
534 AliLoader* outputLoader = GetLoader(fDigInput->GetOutputFolderName());
536 outputLoader->MakeDigitsContainer();
538 TTree* oTreeD = outputLoader->TreeD();
542 AliFatal("Cannot create output TreeD");
545 // Loop over all the input files, and merge the sdigits found in those
548 for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile )
550 AliLoader* inputLoader = GetLoader(fDigInput->GetInputFolderName(iFile));
552 inputLoader->LoadSDigits("READ");
554 TTree* iTreeS = inputLoader->TreeS();
557 AliFatal(Form("Could not get access to input file #%d",iFile));
560 if (!fInputDigitStores)
562 CreateInputDigitStores();
565 AliMUONVDigitStore* dstore = static_cast<AliMUONVDigitStore*>(fInputDigitStores->At(iFile));
567 dstore->Connect(*iTreeS);
571 MergeWithSDigits(fDigitStore,*dstore,fDigInput->GetMask(iFile));
573 inputLoader->UnloadSDigits();
579 // At this point, we do have digit arrays (one per chamber) which contains
580 // the merging of all the sdigits of the input file(s).
581 // We now massage them to apply the detector response, i.e. this
582 // is here that we do the "digitization" work.
584 if (!fOutputDigitStore)
586 fOutputDigitStore = fDigitStore->Create();
589 if ( fGenerateNoisyDigits>=2 )
591 // Generate noise-only digits for trigger.
592 GenerateNoisyDigitsForTrigger(*fDigitStore);
594 ApplyResponse(*fDigitStore,*fOutputDigitStore);
596 if ( fGenerateNoisyDigits )
598 // Generate noise-only digits for tracker.
599 GenerateNoisyDigits(*fOutputDigitStore);
602 // We generate the global and local trigger decisions.
603 fTriggerProcessor->Digits2Trigger(*fOutputDigitStore,*fTriggerStore);
605 // Prepare output tree
606 Bool_t okD = fOutputDigitStore->Connect(*oTreeD,kFALSE);
607 Bool_t okT = fTriggerStore->Connect(*oTreeD,kFALSE);
610 AliError(Form("Could not make branch : Digit %d Trigger %d",okD,okT));
614 // Fill the output treeD
617 // Write to the output tree(D).
618 // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same
619 // tree (=TreeD) in different branches, this WriteDigits in fact writes all of
621 outputLoader->WriteDigits("OVERWRITE");
623 outputLoader->UnloadDigits();
625 // Finally, we clean up after ourselves.
626 fTriggerStore->Clear();
627 fDigitStore->Clear();
628 fOutputDigitStore->Clear();
632 //_____________________________________________________________________________
634 AliMUONDigitizerV3::GenerateNoisyDigits(AliMUONVDigitStore& digitStore)
636 /// According to a given probability, generate digits that
637 /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits
638 /// that are "only noise".
640 AliCodeTimerAuto("",0)
642 for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i )
648 while ( !it.IsDone() )
650 for ( Int_t cathode = 0; cathode < 2; ++cathode )
652 GenerateNoisyDigitsForOneCathode(digitStore,it.CurrentDEId(),cathode);
659 //_____________________________________________________________________________
661 AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(AliMUONVDigitStore& digitStore,
662 Int_t detElemId, Int_t cathode)
664 /// Generate noise-only digits for one cathode of one detection element.
665 /// Called by GenerateNoisyDigits()
667 const AliMpVSegmentation* seg
668 = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode));
669 Int_t nofPads = seg->NofPads();
671 Int_t maxIx = seg->MaxPadIndexX();
672 Int_t maxIy = seg->MaxPadIndexY();
674 static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgNSigmas/TMath::Sqrt(2.0)) / 2. ;
676 Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads);
677 if ( !nofNoisyPads ) return;
680 TMath::Nint(gRandom->Gaus(nofNoisyPads,
681 nofNoisyPads/TMath::Sqrt(nofNoisyPads)));
683 AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads));
685 for ( Int_t i = 0; i < nofNoisyPads; ++i )
692 ix = gRandom->Integer(maxIx+1);
693 iy = gRandom->Integer(maxIy+1);
694 pad = seg->PadByIndices(ix,iy,kFALSE);
695 } while ( !pad.IsValid() );
697 Int_t manuId = pad.GetManuId();
698 Int_t manuChannel = pad.GetManuChannel();
700 AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId);
704 // no pedestal available for this channel, simply give up
708 AliMUONVDigit* d = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode);
712 d->SetCharge(0.0); // charge is zero, the ApplyResponseToTrackerDigit will add the noise
714 ApplyResponseToTrackerDigit(*d,kTRUE);
717 Bool_t ok = digitStore.Add(*d,AliMUONVDigitStore::kDeny);
718 // this can happen (that we randomly chose a digit that is
719 // already there). We simply ignore this, but log the occurence
720 // to cross-check that it's not too frequent.
723 fLogger->Log("Collision while adding noiseOnly digit");
727 fLogger->Log("Added noiseOnly digit");
735 //_____________________________________________________________________________
737 AliMUONDigitizerV3::GenerateNoisyDigitsForTrigger(AliMUONVDigitStore& digitStore)
739 /// Generate noise-only digits for one cathode of one detection element.
740 /// Called by GenerateNoisyDigits()
742 if ( !fNoiseFunctionTrig )
744 fNoiseFunctionTrig = new TF1("AliMUONDigitizerV3::fNoiseFunctionTrig","landau",
747 fNoiseFunctionTrig->SetParameters(3.91070e+02, 9.85026, 9.35881e-02);
751 AliMUONVDigit *d[2]={0x0};
753 for ( Int_t chamberId = AliMUONConstants::NTrackingCh(); chamberId < AliMUONConstants::NCh(); ++chamberId )
756 Int_t nofNoisyPads = 50;
758 Float_t r=-1, fi = 0., gx, gy, x, y, z, xg01, yg01, zg, xg02, yg02;
761 AliDebug(3,Form("Chamber %d nofNoisyPads %d",chamberId,nofNoisyPads));
763 for ( Int_t i = 0; i < nofNoisyPads; ++i )
765 //printf("Generating noise %i\n",i);
768 Bool_t isOk = kFALSE;
769 Int_t detElemId = -1;
771 //r = gRandom->Landau(9.85026, 9.35881e-02);
772 r = fNoiseFunctionTrig->GetRandom();
773 fi = 2. * TMath::Pi() * gRandom->Rndm();
774 //printf("r = %f\tfi = %f\n", r, fi);
775 gx = r * TMath::Cos(fi);
776 gy = r * TMath::Sin(fi);
778 for ( it.First(chamberId); ! it.IsDone(); it.Next() ){
779 Int_t currDetElemId = it.CurrentDEId();
780 const AliMpVSegmentation* seg
781 = AliMpSegmentation::Instance()->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(0));
783 Float_t deltax = seg->GetDimensionX();
784 Float_t deltay = seg->GetDimensionY();
785 GetTransformer()->Local2Global(currDetElemId, -deltax, -deltay, 0, xg01, yg01, zg);
786 GetTransformer()->Local2Global(currDetElemId, deltax, deltay, 0, xg02, yg02, zg);
787 Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02;
796 if(gx>=xg1 && gx<=xg2 && gy>=yg1 && gy<=yg2){
797 detElemId = currDetElemId;
798 GetTransformer()->Global2Local(detElemId, gx, gy, 0, x, y, z);
799 pad[0] = seg->PadByPosition(x,y,kFALSE);
800 if(!pad[0].IsValid()) continue;
807 const AliMpVSegmentation* seg1
808 = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(1));
809 pad[1] = seg1->PadByPosition(x,y,kFALSE);
811 for ( Int_t cathode = 0; cathode < 2; ++cathode ){
812 Int_t manuId = pad[cathode].GetLocalBoardId(0);
813 Int_t manuChannel = pad[cathode].GetLocalBoardChannel(0);
814 d[cathode] = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode);
815 ix = pad[cathode].GetIx();
816 iy = pad[cathode].GetIy();
817 d[cathode]->SetPadXY(ix,iy);
818 //d[cathode].SetSignal(1);
819 //d[cathode].SetPhysicsSignal(0);
820 d[cathode]->SetCharge(1);
821 d[cathode]->NoiseOnly(kTRUE);
822 AliDebug(3,Form("Adding a pure noise digit :"));
824 Bool_t ok = digitStore.Add(*d[cathode],AliMUONVDigitStore::kDeny);
827 fLogger->Log("Collision while adding TriggerNoise digit");
831 fLogger->Log("Added triggerNoise digit");
834 } // loop on noisy pads
835 } // loop on chambers
839 //_____________________________________________________________________________
841 AliMUONDigitizerV3::GetLoader(const TString& folderName)
843 /// Get a MUON loader
845 AliDebug(2,Form("Getting access to folder %s",folderName.Data()));
846 AliLoader* loader = AliRunLoader::GetDetectorLoader("MUON",folderName.Data());
849 AliError(Form("Could not get MuonLoader from folder %s",folderName.Data()));
855 //_____________________________________________________________________________
857 AliMUONDigitizerV3::Init()
859 /// Initialization of the digitization :
860 /// a) create the calibrationData, according to run number
861 /// b) create the trigger processing task
865 if ( fIsInitialized )
867 AliError("Object already initialized.");
873 AliError("fDigInput is null !");
878 if ( ! AliMpCDB::LoadDDLStore() ) {
879 AliFatal("Could not access mapping from OCDB !");
882 if (!fCalibrationData)
883 AliFatal("Calibration data object not defined");
885 if ( !fCalibrationData->Pedestals() )
887 AliFatal("Could not access pedestals from OCDB !");
889 if ( !fCalibrationData->Gains() )
891 AliFatal("Could not access gains from OCDB !");
895 AliInfo("Using trigger configuration from CDB");
897 fTriggerProcessor = new AliMUONTriggerElectronics(fCalibrationData);
899 AliDebug(1, Form("Will %s generate noise-only digits for tracker",
900 (fGenerateNoisyDigits ? "":"NOT")));
902 fTriggerUtilities = new AliMUONTriggerUtilities(fCalibrationData);
904 if ( muon()->GetTriggerEffCells() ) {
905 // Apply trigger efficiency
906 AliDebug(1, "Will apply trigger efficiency");
907 fTriggerEfficiency = new AliMUONTriggerChamberEfficiency(fCalibrationData->TriggerEfficiency());
910 fIsInitialized = kTRUE;
915 //_____________________________________________________________________________
916 Int_t AliMUONDigitizerV3::GetArrayIndex(Int_t cathode, Int_t trigCh, Int_t localCircuit)
918 /// Get index of array with trigger status map or efficiency
920 AliMUONConstants::NTriggerCircuit() * AliMUONConstants::NTriggerCh() * cathode +
921 AliMUONConstants::NTriggerCircuit() * trigCh + localCircuit-1;
925 //_____________________________________________________________________________
927 AliMUONDigitizerV3::MergeWithSDigits(AliMUONVDigitStore*& outputStore,
928 const AliMUONVDigitStore& input,
931 /// Merge the sdigits in inputData with the digits already present in outputData
933 if ( !outputStore ) outputStore = input.Create();
935 TIter next(input.CreateIterator());
936 AliMUONVDigit* sdigit;
938 while ( ( sdigit = static_cast<AliMUONVDigit*>(next()) ) )
940 // Update the track references using the mask.
941 // FIXME: this is dirty, for backward compatibility only.
942 // Should re-design all this way of keeping track of MC information...
943 if ( mask ) sdigit->PatchTracks(mask);
944 // Then add or update the digit to the output.
945 AliMUONVDigit* added = outputStore->Add(*sdigit,AliMUONVDigitStore::kMerge);
948 AliError("Could not add digit in merge mode");
953 //_____________________________________________________________________________
955 AliMUONDigitizerV3::NoiseFunction()
957 /// Return noise function
961 f = new TF1("AliMUONDigitizerV3::NoiseFunction","gaus",fgNSigmas,fgNSigmas*10);
962 f->SetParameters(1,0,1);
967 //_____________________________________________________________________________
968 void AliMUONDigitizerV3::SetCalibrationData(AliMUONCalibrationData* calibrationData,
969 AliMUONRecoParam* recoParam)
971 fCalibrationData = calibrationData;
972 fRecoParam = recoParam;
975 AliError("Cannot work (e.g. decalibrate) without recoparams !");